Cummins N14 STC, Celect, Celect Plus – Service Manual Variable Speed (VS) Governor – Speed is Not Set Correctly

Symptom Tree  t126

This is symptom tree
Cause Correction

Lower throttle lever is not locked wide open

Make sure the lower throttle lever linkage opens the throttle wide open. Refer to Procedure 005-035 in Section 5.

 

Variable speed (VS) governor linkage is not fully open or is set to idle

Adjust the throttle linkage. Refer to Procedure 005-036 in Section 5.

 

Low speed screw is not adjusted correctly

Loosen the locknut and adjust the rear screw. Refer to Procedure 005-029 in Section 5.

 

High-speed screw is not adjusted correctly

Loosen the locknut, and adjust the high-speed (top-0) screw. Refer to Procedure 005-029 in Section 5.

 

High?speed spring is not correct

Remove the fuel pump and change the spring. Refer to Procedure 005-016 in Section 5.

 

Lever screw does not allow the throttle lever plunger to move

Remove the fuel pump. Refer to Procedure 005-016 in Section 5.

 
Last Modified:  18-Jan-2012